GifAnimator - 9:30 pm on Oct 24, 2012 (gmt 0)
What is also overlooked is that G+ is an ideal platform for creative people to interact, show off their creations and promote their wares without any need of a website. You do have to give your real name, and very little other personal information. It has a reputation for having members that are professional and the TOS is far better than facebook.
Spam profiles disappear very quickly and it is very easy to see the reputation of an author by looking at his post, his friends authority, how many original words have been written, how many members in his circle from all over the world, how many plus ones and countless other signals Google will pick up. It may not be an important factor for SEO but every little bit helps.
Maybe the next step for Google will be to promote the little snippets that appear on the search results and openly say that these sites can be trusted although many people I know are beginning to realise this because of the quality of any site that has an authorship tag approved.
It takes so long to get approval that many here are sure that websites are checked manually.